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Disclosery

GSA CAPITAL PARTNERS LLP: AMSC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of GSA CAPITAL PARTNERS LLP on AMSC, newest first. How the timeline and the estimate are built.

GSA CAPITAL PARTNERS LLP held 0 AMSC shares at 2025-12-31 per its 13F-HR filed 2026-02-06.

the latest 13F is the newest step

  1. period ended2025-12-31
    13F 0 shares
    Change vs previous 13F -15,798 shares

    13F-HR 0001362033-26-000001 filed by GSA CAPITAL PARTNERS LLP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

    Exited: the 13F for this period no longer lists the position.

  2. period ended2025-09-30
    13F 15,798 shares
    Change vs previous 13F +8,325 shares

    0.08% of the 13F portfolio, value $938,000.

    13F-HR 0001362033-25-000016 filed by GSA CAPITAL PARTNERS LLP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2025-06-30
    13F 7,473 shares
    Change vs previous 13F -23,533 shares

    0.02% of the 13F portfolio, value $274,000.

    13F-HR 0001362033-25-000007 filed by GSA CAPITAL PARTNERS LLP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  4. period ended2025-03-31
    13F 31,006 shares
    Change vs previous 13F -3,655 shares

    0.05% of the 13F portfolio, value $562,000.

    13F-HR 0001362033-25-000006 filed by GSA CAPITAL PARTNERS LLP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  5. period ended2024-12-31
    13F 34,661 shares
    Change vs previous 13F not available

    0.06% of the 13F portfolio, value $854,000.

    13F-HR 0001362033-25-000005 filed by GSA CAPITAL PARTNERS LLP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).